CN102855788B - A kind of modularization information process experimental system based on panel computer and method - Google Patents
A kind of modularization information process experimental system based on panel computer and method Download PDFInfo
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Abstract
The present invention relates to a kind of modularization information process experimental system based on panel computer and method, this experimental system comprises the panel computer with display, touch-control and the network communications technology, also comprises experimental facilities main frame and experiment module.Experimental facilities main machine structure adopts modular design, and it has versatility, can install all kinds of experiment modules meeting bus standard.A kind of modularization information process experimental system based on panel computer of the present invention and method, make full use of portability and the easy exploiting of panel computer, panel computer shows the experiment content of experimental facilities and exploitation thereof and experimentation, makes the experimental project that whole experimental system can provide multi-level.
Description
Technical field
The present invention relates to technical field of information processing, be specifically related to a kind of modularization information process experimental system based on panel computer and method.
Background technology
To be that electronic information type student is requisite put into practice instrument with experimental facilities.According to different specialties and course arrangement, laboratory needs different experimental facilitiess.The CPU(that existing experimental facilities mainly utilizes PC and system to carry is as embedded system) carry out data analysis and result display, the CPU(that system carries is as embedded system) often fairly simple, do not possess the ability of student's secondary development of allowing, after the experiment content of experimental box is determined, the operation that can only be fixed, the space that user does not develop, the use value of influential system.Utilize subsidiary PC to carry out the Measures compare tradition of data Graphics Processing and exploitation, its ability of second development is strong, but PC price is more expensive, not easily moves, and must attach special data acquisition unit and just can carry out work, is also eliminated gradually.
Along with the development of embedded technology and software engineering, a large amount of uses that panel computer obtains, plate type computer integrates Mobile business, mobile communication and mobile entertainment, there is handwriting recognition and wireless communication function, utilize panel computer to become the direction of technical development as the main control computer of experimental facilities.Simultaneously on the basis that the multi-specialized group of electronic information class builds, multi-specializedly to blend with the knowledge of subject, require the practice comprising multiple technology points such as mobile software programming, hardware design exploitation, sensor technology, radio communication in a experimental facilities.Under such overall background, the present invention devises a modularization information process experimental system based on panel computer, and this system comprises conventional flat-panel computer, experiment main frame and experiment module three parts.System is using commercial panel computer as the data processing core of equipment, and main frame arranges in pairs or groups the mode of different experiment modules to complete the experiment content of different majors by experiment.
Existing also do not have similar patent or product to occur, the patent be close comprises the Chinese utility model patent that application number is 200920167638.9, it provide a kind of sensor experiment system, comprising: measurement and control unit, for testing measurand and obtaining analog test signal; Sensor unit, for future, the analog test signal of Self-measured/controlled unit is converted to digital test signal; Also comprise the first control module and the second control module.In preferred version of the present invention, arranging wireless transmit/receive units can combine cable technology and wireless technology, thus can carry out integrated application to sensor technology in an experiment.Although the feature of this technical scheme utilizes wireless technology to carry out data acquisition, but utilize PC as the display of main data and processor, there is no the concept of Experiment Platform, and do not use panel computer as the master control of equipment.
In addition, application number be 201010518718.1 Chinese invention patent disclose a kind of one-stop laboratory control system, integrate display, touch-control, the panel computer of network communications technology and touch-screen, touch-screen shows the touch key-presss such as clock, air-conditioning system, light behaviour, alarm condition, logout, key frame main operation, by the light in touch key-press and each laboratory of the corresponding programmed control of main frame, air-conditioning, alarm bell or traffic lights, and the time of carrying out each program, event description, event type carry out record.Can all requirements of Control release room environment completely in control flow, as temperature, humidity, pressure etc., and the event that can be carries out detailed record, for the condition analysis of experiment is preserved and have accumulated data, convenient inquiry.To the display of equipment running status computer screen, break down meeting security alarm, and experiment safety is fully protected.After experiment terminates, close the equipment such as light or air-conditioning easily by display screen, avoid occurring forgetting that the situation of closing electrical equipment occurs, effectively saved electric energy.Although this one-stop laboratory control system utilizes panel computer as main controller, mainly utilize panel computer to carry out the monitoring of laboratory environment, do not relate to completing of specific experiment.
Summary of the invention
In order to solve the problem, the invention provides a kind of new experimental system, with integrate display, touch-control, network communications technology panel computer and experiment main frame, experiment module three part is as core, make full use of portability and the easy exploiting of panel computer, panel computer shows the experiment content of experimental facilities and exploitation thereof and experimentation, makes the experimental project that whole experimental system can provide multi-level.
To achieve these goals, the present invention adopts following technical scheme.
Based on a modularization information process experimental system for panel computer, comprise the panel computer with display, touch-control and the network communications technology, also comprise experimental facilities main frame and experiment module.Experimental facilities main machine structure adopts modular design, and it has versatility, can install all kinds of experiment modules meeting bus standard.
Preferably, described experimental facilities main frame comprises host data conditioning module.
In above-mentioned either a program preferably, described experimental facilities main frame also comprises emulation bus, number bus, data acquisition and WIFI module.
In above-mentioned either a program preferably, described host data conditioning module comprises main frame simulated data conditioning module and host number digital data conditioning module.
In above-mentioned either a program preferably, the signal condition of data acquisition channel in described main frame simulated data conditioning module emulation bus.
In above-mentioned either a program preferably, the level conversion of described host number digital data conditioning module control figure I/O interface and transmission direction.
In above-mentioned either a program preferably, described emulation bus is configured to have power supply supply, ground connection, data acquisition channel and other control signal passage.
In above-mentioned either a program preferably, the AD amplitude of samples of described emulation bus is 0-5V, and its maximum incoming frequency is 100kHz.
In above-mentioned either a program preferably, described number bus is configured to have power supply supply, ground connection and Digital I/O interface.
In above-mentioned either a program preferably, described data acquisition and WIFI module select the FPGA device being with EP2C5T144C8 chip, to realize data channel selection, the serial communication of AD controlling of sampling, Digital I/O Interface Controller and WIFI module and command analysis work.
In above-mentioned either a program preferably, the FPGA device of described data acquisition and WIFI module, by programming Serial Communication Simulation interface, directly communicates with the serial port of WIFI module, transmission adc data and the order of Digital I/O Interface Controller.
In above-mentioned either a program preferably, described WIFI module selects WifimodII core board, changes with the data realizing WIFI and UART interface.
In above-mentioned either a program preferably, the serial port of described WIFI module is asynchronous two-way communication form, is set to 115200 baud rates, a frame 8 bit data position, 1 start bit, no parity check position, 1 position of rest.
In above-mentioned either a program preferably, the communication of described WIFI module and panel computer adopts private communication protocol, and described private communication protocol comprises order of shaking hands, AD control command, the order of Digital I/O Interface Controller, the instruction of digital channel bulk data transfer.
In above-mentioned either a program preferably, described emulation bus configuration UNICOM four analog module slots, each slot arranges two AD sampling channels.
In above-mentioned either a program preferably, described number bus configuration UNICOM two digital module slots, total 24BIT Digital I/O interface is connected to each slot.
In above-mentioned either a program preferably, described data acquisition and WIFI module are configured to gating and the data transfer direction that can control Digital I/O interface.
In above-mentioned either a program preferably, described WIFI module is configured to support that point to point connect and basic schema connect, the point to point connect of WIFI module can realize directly being connected with terminal device, and the basic schema connection of WIFI module can realize being connected to existing wireless network.
In above-mentioned either a program preferably, the basic schema connection of described WIFI module can realize being connected to the one in AP, WLan wireless network.
In above-mentioned either a program preferably, described panel computer is connected by wireless router with WIFI module, and it arranges wireless network name SSID is test, connects username and password when cancelling network insertion.
In above-mentioned either a program preferably, this experimental system selects AD7888 converter.
In above-mentioned either a program preferably, this experimental system selects LM324 general-purpose operation amplifier to form change-over circuit.
The overall workflow step completing an experiment according to a kind of modularization information process experimental system based on panel computer of the present invention is as follows:
Experiment starts;
Determine requirement of experiment, connect hardware module, contrived experiment scheme;
Panel computer carries out software development, contrived experiment interface;
According to system transport protocol, write control command;
By panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module;
Experimental facilities main frame successfully receives instruction by WIFI;
Experimental facilities main frame sends instruction to fpga chip by WIFI serial ports;
FPGA starts AD sampling or digital data transmission;
AD sampling terminates or Signal transmissions terminates;
Shown to panel computer by WIFI passback AD data or result;
Start new experiment: if "Yes", test beginning again, if "No", experiment terminates.
In such scheme preferably, when experimental facilities main frame receives instruction by WIFI unsuccessful (namely occurring "No"), then write control command according to system transport protocol, again pass through panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module.
In such scheme preferably, when AD sampling or Signal transmissions do not terminate (namely occurring "No"), then experimental facilities main frame sends instruction to fpga chip by WIFI serial ports, and FPGA starts AD sampling or digital data transmission again.
A kind of modularization information process experimental system based on panel computer of the present invention, is divided into panel computer, experimental facilities main frame and experiment module three part, and wherein, panel computer (recommendation Android system) and radio network gateway all use existing commercial product.Utilize panel computer to show and the equipment state of Control release equipment, its difficult point is that data between panel computer and experimental facilities and command transfer connect method, and the method for designing of versabus.Data in experimental facilities divide analog-and digital-two kinds, and simulating signal is transferred to panel computer after needing digitizing again.At present, the data acquisition unit comparative maturity of Based PC, but substantially do not have based on the data acquisition equipment of panel computer, a kind of modularization information process experimental system based on panel computer of the present invention, utilize WIFI wireless mode, devise a Data acquisition and transmit system based on fpga chip, well solve this problem.
A kind of modularization information process experimental system based on panel computer provided by the invention and method, its maximum feature and innovative point are:
1. this experimental system first time utilizes panel computer as the master controller of whole experimental system, mainly solves panel computer application in an experiment;
2. utilize WIFI wireless mode complete experiment main frame and panel computer between data and command transfer;
3. this system has general-purpose simulation and data bus, can complete multi-disciplinary Comprehensive Experiment by easily extensible according to bus standard.
A kind of modularization information process experimental system based on panel computer of the present invention and method, provide multi-level experimental project, make the student of soft project, computer major that panel computer can be utilized to develop software program for experiment box hardware, the classmate of communication engineering can utilize panel computer to communicate with the WIFI module of experimental box to carry out communications program development, and the classmate of Electronics can utilize according to system bus standard development experiment module.Improve the deficiency of existing experimental facilities, the new modularization information process experimental system based on panel computer is provided, practical, avoid the wasting of resources, also temper the comprehensive design abilities of students simultaneously.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of a preferred embodiment of a kind of modularization information process experimental system based on panel computer of the present invention;
Fig. 2 is the experimental facilities main machine structure block diagram of a preferred embodiment of a kind of modularization information process experimental system based on panel computer of the present invention;
Fig. 3 is the emulation bus wiring schematic diagram of main frame in Fig. 2;
Fig. 4 and Fig. 5 is the number bus wiring schematic diagram of main frame in Fig. 2;
Fig. 6 is the simulated data conditioning module figure of main frame in Fig. 2;
Fig. 7 is the numerical data conditioning module figure of main frame in Fig. 2;
Fig. 8 is data acquisition and the WIFI module schematic diagram of main frame in Fig. 2;
Fig. 9 is the overall workflow figure utilizing a kind of modularization information process experimental system based on panel computer of the present invention to carry out an experiment;
Figure 10 and Figure 11 utilizes a kind of modularization information process experimental system based on panel computer of the present invention to complete the experimentation figure of " traffic light experiment ";
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated, below describe only exemplarily and explain, any pro forma restriction is not done to the present invention.
Based on a modularization information process experimental system for panel computer, as shown in Figure 1, panel computer, experiment main frame and experiment module three part is divided into.Panel computer recommendation Android system, panel computer and radio network gateway all use existing commercial product.This experimental system utilizes panel computer to show and the equipment state of Control release equipment, adopts the method for designing of versabus.Data in experimental facilities divide analog-and digital-two kinds, and simulating signal is transferred to panel computer after needing digitizing again.Meanwhile, as shown in Figure 3, this experimental system also uses WIFI wireless mode, and based on the Data acquisition and transmit system of fpga chip.
Experimental facilities main machine structure adopts modular design, has versatility, can install all kinds of experiment modules meeting bus standard.As shown in Figure 2, the experimental facilities main frame of this experimental system mainly comprises: emulation bus, number bus, data acquisition and WIFI module, host data conditioning module.Wherein, Fig. 3 display be the emulation bus of main frame, totally 20 pins, comprise power supply supply (+5V ,-5V ,+12V ,-12V), ground connection, data acquisition channel (CHA1_IN0, CHA1_IN1), other control signal etc.The amplitude of AD sampling is 0-5V, maximum incoming frequency 100kHz.Fig. 4 and Fig. 5 display be the number bus of main frame, comprise power supply supply (+5V), ground connection, Digital I/O interface (CH2_D0----CH2_D23), totally 24 railway digital I/O interface.Fig. 6 display be main frame simulated data conditioning module, the signal condition of data acquisition channel in its primary responsibility emulation bus, the AD being 0-3.3V by the conditioning of the sampled voltage scope of 0-5V in bus samples input range, and in addition voltage protection.What Fig. 7 showed is host number digital data conditioning module, and the level conversion of its primary responsibility Digital I/O interface and transmission direction control.
As shown in Figure 8, this module is the core of system for data acquisition in this experimental system and the structured flowchart of WIFI module, and whole module is based on the EP2C5T144C8 chip of ALTRA company FPGA device.Fpga chip contributes to improving the integrated level of experimental system and reliability, completes data channel selections, the control of AD controlling of sampling, Digital I/O and and the serial communication of WIFI module and command analysis work by fpga chip.
One, and the serial communication of WIFI module and the communication protocol of panel computer:
The WIFI(802.11b/g that WIFI module sampling in main frame is commercial) WifimodII core board, this core board meets IEEE 802.11b/g standard, and the data realizing WIFI and UART interface are changed.FPGA in system data acquisition and WIFI control module, by programme Serial Communication Simulation interface, directly communicates with the serial port of WIFI module (low level be, high level is+3.3V), transmits adc data and I/O port control command.The asynchronous two-way communication form of WIFI, 115200 baud rates, a frame 8 bit data position, 1 start bit, no parity check position, 1 position of rest.Module is communicated with panel computer by commercial WIFI module, and devises special communication protocol, and this agreement comprises totally 20 instructions such as class order of shaking hands, AD control command, Digital I/O control command, the instruction of digital channel bulk data transfer altogether.
Its two, the data channel of emulation bus is selected and is resolved:
Emulation bus is UNICOM's 4 analog module slots altogether, and each slot has 2 AD sampling channels, and whole like this analog channel has 8 analog sampling passages.Because system adopts Ad7888(12 position 8 passage) converter, so need channel selecting and level shifting circuit between analog channel to A/D chip.The present invention adopts LM324 general-purpose operation amplifier to form change-over circuit.
Its three, the transmission of the I/O data of number bus:
Number bus UNICOM two digital module slots, total 24BIT Digital I/O is connected to each slot.Data acquisition and WIFI module can control gating and the data transfer direction of Digital I/O.
Its four, AD conversion:
Ad7888(8-Channel is adopted, 125 kSPS, 12-Bit ADC in module) converter is as the data Switching Core of whole system.
About WIFI and the panel computer connected mode of this experimental system, first in general, WIFI module is equivalent to extract terminal device (notebook, mobile phone etc.) WIFI module complete, it supports that point to point connect and basic schema connect, wherein point to point connect can realize with terminal device direct-connected, basic schema connection can realize being connected to existing wireless network (as AP, WLan), because panel computer itself does not generally support point to point connect (support of some mobile phone), therefore need to be configured to basic schema to connect, namely by Wi-Fi, WIFI module is connected together with panel computer.Secondly, route is arranged, enters router and the page is set, wireless network name SSID is set, be such as arranged to test, when cancelling network insertion, connect user name, password.3rd, arrange for WIFI module, WIFI module powers on, at address field input 192.168.1.254, carriage return enters configuration interface, just can see that browser prompts user logs in, input default user name admin and password admin, can log in configuration interface, in the wireless setting of configuration interface, input the wireless network name that router is above arranged, such as test, access module selects basic schema, and encryption arranges selection nothing, then select to preserve, and restart module.4th, for panel computer configuration, enter panel computer and arrange module, select wireless connections, and select the wireless network of couple in router, as test, now panel computer and WIFI module are integrated in the wireless network set by route jointly.
The overall workflow of an experiment is completed as shown in Figure 9 according to this experimental system:
Experiment starts;
Determine requirement of experiment, connect hardware module, contrived experiment scheme;
Panel computer carries out software development, contrived experiment interface;
According to system transport protocol, write control command;
By panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module;
Experimental facilities main frame successfully receives instruction by WIFI;
Experimental facilities main frame sends instruction to fpga chip by WIFI serial ports;
FPGA starts AD sampling or digital data transmission;
AD sampling terminates or Signal transmissions terminates;
Shown to panel computer by WIFI passback AD data or result;
Start new experiment: if "Yes", test beginning again, if "No", experiment terminates.
Wherein, if experimental facilities main frame receives instruction by WIFI unsuccessful (namely occurring "No"), then write control command according to system transport protocol, again pass through panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module.
If AD sampling or Signal transmissions do not terminate (namely occurring "No"), then experimental facilities main frame sends instruction to fpga chip by WIFI serial ports, and FPGA starts AD sampling or digital data transmission again.
Next, then for one " traffic light experiment ", whole experimentation is completed according to a kind of modularization information process experimental system based on panel computer of the present invention, as shown in Figure 10:
This experiment content is: (1) closes experimental box power supply, plugs thermistor experiment module, notes inserting simulation slot.Open experimental box power supply, now can see that modular power source pilot lamp is bright; (2) open the main interface of panel computer, select traffic lights resistance experiment icon, enter experiment; (3) design objective: the traffic light control system of a design crossroad, the direction (thing and each two groups of north and south) passed through with the LED diode displaying vehicle in module, require: job order is east-west direction when red 45 seconds, first 40 seconds North and South direction green lights, within latter 5 seconds, amber light is bright, then North and South direction when red 45 seconds, first 40 seconds east-west direction green lights, within latter 5 seconds, amber light is bright, repeats successively; (4) on panel computer, LED light on and off and time are set by requirement above, and save as the data file of response; (5) data file of formation is downloaded in main frame run; (6) observe the whether same design of experiment effect in traffic lights module.
And then, as shown in figure 11, panel computer carries out experimental design, and form transmission order, complete the whole system course of work of this experiment.
The above is only be described the preferred embodiment of the present invention, is not limit scope of the present invention.Under not departing from the present invention and designing the prerequisite of spirit, the various distortion that the common engineering technical personnel in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (19)
1., based on a modularization information process experimental system for panel computer, comprise the panel computer with display, touch-control and the network communications technology, it is characterized in that: this experimental system also comprises experimental facilities main frame and experiment module; Described experimental facilities main machine structure adopts modular design, and it has versatility, can install all kinds of experiment modules meeting bus standard; Described experimental facilities main frame comprises host data conditioning module, emulation bus, number bus, data acquisition and WIFI module; The host data conditioning module of described experimental facilities main frame comprises main frame simulated data conditioning module and host number digital data conditioning module; The data acquisition of described experimental facilities main frame and WIFI module select the FPGA device being with EP2C5T144C8 chip, to realize data channel selection, the serial communication of AD controlling of sampling, Digital I/O Interface Controller and WIFI module and command analysis work; This experimental system utilizes panel computer to show the experiment content of experimental facilities and exploitation thereof and experimentation, and the equipment state of Control release equipment, adopt the method for designing of versabus.
2., as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: the signal condition of data acquisition channel in described main frame simulated data conditioning module emulation bus.
3., as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: the level conversion of described host number digital data conditioning module control figure I/O interface and transmission direction.
4., as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: described emulation bus is configured to have power supply supply, ground connection, data acquisition channel and other control signal passage.
5. the modularization information process experimental system based on panel computer as described in claim 1 or 4, is characterized in that: the AD amplitude of samples of described emulation bus is 0-5V, and its maximum incoming frequency is 100kHz.
6. as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: described number bus is configured to have power supply supply, ground connection and Digital I/O interface.
7. as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: the FPGA device of described data acquisition and WIFI module is by programming Serial Communication Simulation interface, directly communicate with the serial port of WIFI module, transmission adc data and the order of Digital I/O Interface Controller.
8. the modularization information process experimental system based on panel computer as described in claim 1 or 7, is characterized in that: described WIFI module selects WifimodII core board, changes with the data realizing WIFI and UART interface.
9. the modularization information process experimental system based on panel computer as described in claim 1 or 7, is characterized in that: the serial port of described WIFI module is asynchronous two-way communication form, is set to 115200 baud rates, one frame 8 bit data position, 1 start bit, no parity check position, 1 position of rest.
10. the modularization information process experimental system based on panel computer as described in claim 1 or 7, it is characterized in that: the communication of described WIFI module and panel computer adopts private communication protocol, described private communication protocol comprises order of shaking hands, AD control command, the order of Digital I/O Interface Controller, the instruction of digital channel bulk data transfer.
11., as claimed in claim 1 based on the modularization information process experimental system of panel computer, is characterized in that: described emulation bus configuration UNICOM four analog module slots, each slot arranges two AD sampling channels.
12. modularization information process experimental systems based on panel computer as described in claim 1 or 6, is characterized in that: described number bus configuration UNICOM two digital module slots, total 24BIT Digital I/O interface is connected to each slot.
13. modularization information process experimental systems based on panel computer according to any one of claim 1 or 7, is characterized in that: described data acquisition and WIFI module are configured to control gating and the data transfer direction of Digital I/O interface.
14. modularization information process experimental systems based on panel computer as described in claim 1 or 7, it is characterized in that: described WIFI module is configured to support that point to point connect and basic schema connect, the point to point connect of WIFI module can realize directly being connected with terminal device, and the basic schema connection of WIFI module can realize being connected to existing wireless network.
15., as claimed in claim 14 based on the modularization information process experimental system of panel computer, is characterized in that: the basic schema connection of described WIFI module can realize being connected to the one in AP, WLan wireless network.
16. as claimed in claim 1 based on the modularization information process experimental system of panel computer, it is characterized in that: described panel computer is connected by wireless router with WIFI module, it arranges wireless network name SSID is test, connects username and password when cancelling network insertion.
17., as claimed in claim 1 based on the modularization information process experimental system of panel computer, is characterized in that: this experimental system selects AD7888 converter.
18., as claimed in claim 1 based on the modularization information process experimental system of panel computer, is characterized in that: this experimental system selects LM324 general-purpose operation amplifier to form change-over circuit.
19. 1 kinds of modularization information process experimental techniques based on panel computer, comprise the modularization information process experimental system based on panel computer according to any one of claim 1-18, it is characterized in that:
This experimental technique comprises the steps:
S1, experiment starts;
S2, determines requirement of experiment, connects hardware module, contrived experiment scheme;
S3, panel computer carries out software development, contrived experiment interface;
S4, according to system transport protocol, writes control command;
S5, by panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module;
S6, experimental facilities main frame successfully receives instruction by WIFI;
S7, experimental facilities main frame sends instruction to fpga chip by WIFI serial ports;
S8, FPGA start AD sampling or digital data transmission;
S9, AD sampling terminates or Signal transmissions terminates;
S10, returns AD data by WIFI or result shows to panel computer;
S11, starts new experiment again, or terminates experiment;
Receive instruction when experimental facilities main frame is not successful by WIFI, then write control command according to system transport protocol, again pass through panel computer WIFI sending controling instruction to experimental facilities main frame WIFI module; When AD sampling or Signal transmissions do not terminate, then experimental facilities main frame sends instruction to fpga chip by WIFI serial ports, and FPGA starts AD sampling or digital data transmission again.
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| CN201576371U (en) * | 2009-12-23 | 2010-09-08 | 西华大学 | Remote-control teaching training system based on wide area network |
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| CN1229922C (en) * | 2003-03-01 | 2005-11-30 | 大连理工大学 | Research design-type communication principle test systems |
| CN2849872Y (en) * | 2005-04-11 | 2006-12-20 | 北京航空航天大学 | Open type experiment platform for communication principle |
| CN201117149Y (en) * | 2007-11-06 | 2008-09-17 | 南京信息工程大学 | Programmable experiment development device of modularization design |
| CN202195828U (en) * | 2011-07-18 | 2012-04-18 | 西安唐都科教仪器开发有限责任公司 | Developing platform of measurement and analysis instrument |
| CN102523275A (en) * | 2011-12-08 | 2012-06-27 | 北京工业大学 | Internet of things access system based on FPGA and method thereof |
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| CN201576371U (en) * | 2009-12-23 | 2010-09-08 | 西华大学 | Remote-control teaching training system based on wide area network |
| CN102063141A (en) * | 2010-10-25 | 2011-05-18 | 广州市泛美实业有限公司 | One-stop laboratory control system |
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